公开(公告)号：US20250085204A1

公开(公告)日：2025-03-13

申请号：US18827229

申请日：2024-09-06

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： Jonathan Plant ,  Bruce Anderson ,  Kevin Carlson

IPC: G01N3/10

Abstract: A method for unloading a load on a test article in a testing system includes determining a load differential in at least one of a calculated load at a valve for an actuator of the testing system and a calculated load on a load cell coupled to the actuator. A controlled unload of the load on the test article is initiated via a system controller when the determined load differential a reaches a first level. An interlock unload of the load on the test article is performed via the valve when the determined load differential reaches a second level higher than the first level.

公开(公告)号：US12247955B2

公开(公告)日：2025-03-11

申请号：US17866544

申请日：2022-07-17

Applicant: SHIMADZU CORPORATION

Inventor： Shusuke Numata

IPC: G01N3/10 ,  F16C32/06 ,  G01M5/00 ,  G01N3/36

Abstract: In a material testing machine including a load actuator including a shaft configured to make a linear motion, and configured to apply a load to a test piece through the linear motion of the shaft, the load actuator includes a bearing configured to support the shaft, and the bearing serves as an air bearing.

公开(公告)号：US12050206B2

公开(公告)日：2024-07-30

申请号：US17170170

申请日：2021-02-08

Applicant: Illinois Tool Works Inc.

Inventor： Keith Tremblay ,  Richard Conti

IPC: G01N3/10

CPC classification number: G01N3/10

Abstract: An example material testing system includes: a pneumatic grip configured to grip a specimen under test based on a supplied pressure; and a processor configured to control the pressure supplied to the pneumatic grip by repeatedly: controlling a fill valve to increase the supplied pressure; allowing the supplied pressure to stabilize after each increase; and adjusting a pressurization time based on comparing an expected pressure increase to an actual pressure increase during the pressurization.

公开(公告)号：US20240230495A1

公开(公告)日：2024-07-11

申请号：US17912926

申请日：2022-07-22

Applicant: Northeastern University

Inventor： Xiating FENG ,  Xiwei ZHANG ,  Lei SHI ,  Zhibin YAO

IPC: G01N3/30 ,  G01N3/10 ,  G01N33/24

CPC classification number: G01N3/30 ,  G01N3/10 ,  G01N33/24 ,  G01N2203/001 ,  G01N2203/0019 ,  G01N2203/0026 ,  G01N2203/0044 ,  G01N2203/0048 ,  G01N2203/0053 ,  G01N2203/0067 ,  G01N2203/0256 ,  G01N2203/0298 ,  G01N2203/0605 ,  G01N2203/0611 ,  G01N2203/0635 ,  G01N2203/0641 ,  G01N2203/0658

Abstract: The invention relates to a large-scale three-dimensional physical simulation test system for the whole development process of deep engineering rock burst. A CO2 blast cracking device, a dynamic fiber grating and ultrasonic probes are pre-embedded in a physical model sample of similar materials. Acoustic emission probes are pre-mounted on the boundary of a sample. A tunnel excavated in the sample is provided with a three-way acceleration sensor and an industrial endoscope. A sample 3D printer and a drop hammer impact device are arranged outside the three-dimensional static stress loading device. A hydraulic oil source and a controller are arranged outside the three-dimensional static stress loading device and mounted on the ground. The controller is connected with a computer.

公开(公告)号：US11714036B2

公开(公告)日：2023-08-01

申请号：US17089567

申请日：2020-11-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin-Yoo Suh ,  Han-Jin Kim ,  Young Whan Cho ,  Woo Sang Jung ,  Jae-Hyeok Shim ,  Dong-Ik Kim ,  Young-Su Lee ,  Jihyun Hong

IPC: G01N3/18 ,  G01N3/10

CPC classification number: G01N3/18 ,  G01N2203/0071 ,  G01N2203/0226

Abstract: Provided is an apparatus for evaluating high-temperature creep behavior of metals, the apparatus including a chamber configured to fix a metal sample in an inner space sealed from an external environment, and including, at a lower portion, a metal tube stretchable in a length direction by a pressure of a gas, wherein the apparatus is configured in such a manner that a load received by the chamber in the length direction due to the pressure of the gas injected into the chamber is applied to the metal sample.

公开(公告)号：US11703431B2

公开(公告)日：2023-07-18

申请号：US17585960

申请日：2022-01-27

Applicant: Taiyuan University of Technology

Inventor： Guorui Feng ,  Xudong Shi ,  Jinwen Bai ,  Xinyu Yang ,  Boqiang Cui ,  Xianjie Du

IPC: G01N3/10 ,  G01N3/06 ,  G01N3/02 ,  G01N3/08

CPC classification number: G01N3/10 ,  G01N3/06 ,  G01N3/02 ,  G01N3/08 ,  G01N2203/0003 ,  G01N2203/0017 ,  G01N2203/0048 ,  G01N2203/04 ,  G01N2203/06

Abstract: A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.

公开(公告)号：US20220404250A1

公开(公告)日：2022-12-22

申请号：US17841111

申请日：2022-06-15

Applicant: Halliburton Energy Services, Inc.

Inventor： Fraser Murray ,  Shanshan Yu ,  Thanh Nam Vu

IPC: G01N3/10 ,  G01N33/20

Abstract: Provided is a downhole material test sub assembly, a well system including the same, and a method for using the same. The downhole material test sub assembly, in one aspect, includes a flange for coupling to a mandrel, and one or more retainer assemblies coupled to the flange, the one or more retainer assemblies configured to accept a test specimen for running within a wellbore on the mandrel. The downhole material test sub assembly, according to another aspect, includes a mandrel and one or more grooves or pockets located in an outer surface of the mandrel, the one or more grooves or pockets configured to accept a test specimen for running within a wellbore on the mandrel.

公开(公告)号：US11525762B2

公开(公告)日：2022-12-13

申请号：US17034006

申请日：2020-09-28

Applicant: US Gov't as represented by Secretary of Air Force

Inventor： James M Greer, Jr.

IPC: G01N3/04 ,  G01N3/10 ,  G01N3/08

Abstract: A material testing system that uses at least one hydraulic grip is improved with cable clips that are attachable to a respective lateral side of each hydraulic grip wedge. Each cable clip has another end that extends to engage a cable(s) extending from a corresponding wedge retention spring hole. The cable(s) enable manual extension of a wedge retention spring for engagement and disengagement from the hydraulic grip wedge. The cable clip maintains the cable in a noninterfering position during operational use of the material testing system.

公开(公告)号：US11499897B2

公开(公告)日：2022-11-15

申请号：US17715752

申请日：2022-04-07

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yanchun Yin ,  Tongbin Zhao ,  Yunliang Tan ,  Minglu Xing ,  Yubao Zhang ,  Kai Fang ,  Chen Yan

IPC: G01N3/10 ,  G01N33/24 ,  G01N3/06

Abstract: The present invention discloses a deformation controllable compression ring-based mechanical test system for rocks with variable stiffness and a test method thereof, which comprises a loading device, a variable stiffness regulating device, a data monitoring system and a controlling system; the energy storing spring in the loading device allows the rebounding direction of the loading device to be contrary to the strain direction of the test-piece, which eliminates the energy supplement of the loading device to the test-piece and realizes the loading of an oversized stiffness on the test system; the variable stiffness regulating device precisely regulates the loaded stiffness by regulating the loaded stiffness of the test system according to test requirements, which realizes the test of loading different stiffness on the same test system and avoids the influences of differences to loading parameters between different test systems on the test results.

公开(公告)号：US20220244152A1

公开(公告)日：2022-08-04

申请号：US17585960

申请日：2022-01-27

Applicant: Taiyuan University of Technology

Inventor： Guorui FENG ,  Xudong SHI ,  Jinwen BAI ,  Xinyu YANG ,  Boqiang CUI ,  Xianjie DU

IPC: G01N3/10 ,  G01N3/06

Abstract: A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.